Unity Webgl内嵌网页页面_webg了 openurl

作者：IT小白 | 2024-02-21 07:49:12

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webg了 openurl

Unity Webgl端有时候会有这样一个需求，在Unity界面上内嵌一个网页，并且可以在界面上把这个网页关掉（不是重新打开新的标签页）

效果如下：
在这里插入图片描述
现在来实现这个功能：
1.在Assets文件夹下新建一个Plugins目录：

在Plugins文件夹中创建一个文件 __Internal.jslib (必须是jslib格式，并且必须在Plugins文件夹下)
__Internal.jslib内容如下：

mergeInto(LibraryManager.library, {
  //开启新窗口
  OpenUrlWindow:function(str) 
  {
      OpenUrl_Window(Pointer_stringify(str)); //调用js方法
  },
  //关闭新窗口
  CloseUrlWindow:function()
  {
      CloseUrl_Window();//调用js方法
  },
});
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2.新建一个脚本脚本内容如下：


using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.UI;

public class WebglOpenUrlTest : MonoBehaviour
{
    /// <summary>
    /// 需要打开的链接
    /// </summary>
    public string url;

    public Button Btn_NewWin;
    public Button Btn_CloseWin;

    [DllImport("__Internal")]
    private static extern void OpenUrlWindow(string str);

    [DllImport("__Internal")]
    private static extern void CloseUrlWindow();


    void Start()
    {
        Btn_NewWin.onClick.AddListener(delegate
        {
            OpenUrlWindow(url);
        });
        Btn_CloseWin.onClick.AddListener(delegate
        {
            CloseUrlWindow();
        });
    }
}
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将该脚本挂载在物体对象上
在这里插入图片描述
打Webgl包，打包完成后，打包文件夹中会有一个index.html文件

打开文件添加以下内容：

我的index.html如下：

<!DOCTYPE html>
<html lang="en-us">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Unity WebGL Player | 水库3D模型</title>
    <link rel="shortcut icon" href="TemplateData/favicon.ico">
    <link rel="stylesheet" href="TemplateData/style.css">
  </head>
  <body>
    <div id="unity-container" class="unity-desktop">
      <canvas id="unity-canvas" width=1920 height=1080></canvas>
      <div id="unity-loading-bar">
        <div id="unity-logo"></div>
        <div id="unity-progress-bar-empty">
          <div id="unity-progress-bar-full"></div>
        </div>
      </div>
      <div id="unity-warning"> </div>
      <div id="unity-footer">
        <div id="unity-webgl-logo"></div>
        <div id="unity-fullscreen-button"></div>
        <div id="unity-build-title">水库3D模型</div>
      </div>
    </div>
        <div id="urlWindow" style="display:none;width:1000px;height:600px;top: 50%;left:50%;transform: translate(-50%,-50%);position:absolute;border: 0; margin: 0; padding: 0">  
    <iframe id="iframe" src="" style="width: 100%;height: 100%;"></iframe>   
    </div>
    <script>
      var container = document.querySelector("#unity-container");
      var canvas = document.querySelector("#unity-canvas");
      var loadingBar = document.querySelector("#unity-loading-bar");
      var progressBarFull = document.querySelector("#unity-progress-bar-full");
      var fullscreenButton = document.querySelector("#unity-fullscreen-button");
      var warningBanner = document.querySelector("#unity-warning");

      // Shows a temporary message banner/ribbon for a few seconds, or
      // a permanent error message on top of the canvas if type=='error'.
      // If type=='warning', a yellow highlight color is used.
      // Modify or remove this function to customize the visually presented
      // way that non-critical warnings and error messages are presented to the
      // user.
      function unityShowBanner(msg, type) {
        function updateBannerVisibility() {
          warningBanner.style.display = warningBanner.children.length ? 'block' : 'none';
        }
        var div = document.createElement('div');
        div.innerHTML = msg;
        warningBanner.appendChild(div);
        if (type == 'error') div.style = 'background: red; padding: 10px;';
        else {
          if (type == 'warning') div.style = 'background: yellow; padding: 10px;';
          setTimeout(function() {
            warningBanner.removeChild(div);
            updateBannerVisibility();
          }, 5000);
        }
        updateBannerVisibility();
      }

      var buildUrl = "Build";
      var loaderUrl = buildUrl + "/OpenUrlWebgl.loader.js";
      var config = {
        dataUrl: buildUrl + "/OpenUrlWebgl.data",
        frameworkUrl: buildUrl + "/OpenUrlWebgl.framework.js",
        codeUrl: buildUrl + "/OpenUrlWebgl.wasm",
        streamingAssetsUrl: "StreamingAssets",
        companyName: "DefaultCompany",
        productName: "水库3D模型",
        productVersion: "0.1",
        showBanner: unityShowBanner,
      };

      // By default Unity keeps WebGL canvas render target size matched with
      // the DOM size of the canvas element (scaled by window.devicePixelRatio)
      // Set this to false if you want to decouple this synchronization from
      // happening inside the engine, and you would instead like to size up
      // the canvas DOM size and WebGL render target sizes yourself.
      // config.matchWebGLToCanvasSize = false;

      if (/iPhone|iPad|iPod|Android/i.test(navigator.userAgent)) {
        container.className = "unity-mobile";
        // Avoid draining fillrate performance on mobile devices,
        // and default/override low DPI mode on mobile browsers.
        config.devicePixelRatio = 1;
        unityShowBanner('WebGL builds are not supported on mobile devices.');
      } else {
        canvas.style.width = "1920px";
        canvas.style.height = "1080px";
      }
      loadingBar.style.display = "block";

      var script = document.createElement("script");
      script.src = loaderUrl;
      script.onload = () => {
        createUnityInstance(canvas, config, (progress) => {
          progressBarFull.style.width = 100 * progress + "%";
        }).then((unityInstance) => {
          loadingBar.style.display = "none";
          fullscreenButton.onclick = () => {
            unityInstance.SetFullscreen(1);
          };
        }).catch((message) => {
          alert(message);
        });
      };
      document.body.appendChild(script);
             //打开新窗口
      function OpenUrl_Window(str) {
  var otherDiv = document.getElementById('urlWindow');
  otherDiv.style.display = "block";
  document.getElementById("iframe").src =str;
      }    
      //关闭新窗口
      function CloseUrl_Window() {
  var otherDiv = document.getElementById('urlWindow');
  otherDiv.style.display = "none";
  document.getElementById("iframe").src =
  ""
      };
    </script>
  </body>
</html>

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将项目用本地服务打开即可

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